Light support



- and support'.` j

Patented Mays, 1923.

rnnononn enonennniunngor Annee, wIsconsIn.

LIGHT surron'r.

Application filed September 8, i920. `'eerie-1' No. 408,899. 'I

To 'all who-m t may conceive:

Be it known' thatA I, Trrnononn Gr'. 'BER- MAN, av citizen ofthe United States, resid'- at Antigo, in 'the county of' Langladel, Sta-te of Wi.sconsin,`lfi.ave invented certain n'eir'and use-ful Improvements in Light Supports;andI I dio hereby declare the following to be; av iull7 cleaigand enact'l description of the invention, such as will enable others skilled' in thek art to which it appertains to make' and Ius'erthe' saine.

This'invention relates tor electric'light supports7 'and' 1t includes a hanger, an arm or bracket, the support proper `tor holdingthe' lamp' socket and the shade.

Broa'dly speaking, the invention lies in the specific' construction ot the hanger which permits Various 'movements therein', the

bracket arm whereby it mayv be telescoped includes a swivel in said cable within the A hanger andv couplings'in the cable at other points.' j j Y Details of the preferred construction are set' torth below; In the drawings' herewith:

Figure lisa Vertical longitudinal central sectional' View through the light support.

Figure 2 is anenlarged vertical sectional View' through theliang'er 'on the'line2-2 of Figure l. i

FigureA is a: sectional detail through the ball-und-socket joint at the lower end of the hanger, including the connection "ot the inner bracket army withv the' yball on the line 3-3 of Figure 1. r Y

Figure 4 is an enlarged sectional detail ot the swivel coupling.

The hanger is herein shown as adapted to be secured to the ceiling3 but it will be understood as the description progresses that it might be secured to af wall so that it would project horizontally therefrom instead of depending vertically from its support as herein shown. It is made up of an inner cylindrical member 1 shouldered at 2 and having above the shoulder a flange 3 which may be screwed or otherwise attached to the support, the lower end of the cylinder being externally threaded as at 4,; an outer cylindrical member or sleeve 5 surrounding* theinner.ineniber l with' its upper end against said shoulder andv its lower 'end I *Y notched as at 6:; .and ainiit'i? screwed onto the vthreads 4L to. holdI said two" members to.-

'gether, the nut having' a lairge to which are vattached springs 9J whose free ends renwith said notches (5 torhold theroutel member' afterjit'hss beensetinrthe desired position'arouiid vthe inner member l."

rlwo bowed rlegs l0 have ltheir,upper ends secured yto'v oppositeusides of the "sleeve as at ll and their lou-'erends turned down-:ward

and-threaded aspat'l2, andtwo cups 13 are prcvidech each formed with boss or' lsocket by which it is screwed vontoone osaid" threaded ends,V aclaniping bolt ll5 passing through the two legsand serving'when set up vtight to draw said-*cups toward each other. Collectively the latter constitute the outer member ot a ball-and-socltet joint whose idetails yare best'fseen ijnFigiiresfQ and'l i d, and internally the' cupsv are ribbedy as best i seen at 16. The ball 17., ot*` this 'joint lits within said socketand is"externallyribbed eol as at 1.8 and provided with ja ltransve'rse hole 19. f

ner and outer hollowv telescopicy arms; rlJhe innere-rin 2O isexternal'ly ribbed-idas at `2l l 1Cor'- most of its lengtlhjandreduced` and threaded-at oneendfasvat' 29.' to "be screwedy 7'1" l into the holel).` The outer anni 22 'is larger thanthe inner!arm"soastofnioye freely over y it, an d at one'endritis provided with anpair 224 isp/reduced andfthreadedz'as at 25, and i engagesa holein they ball.. oa secondballfv The bracket ofthis structure includesfin* and-socket o'intI whose construction .tol-lows that of the joint just described and need not' vtheretorebe duplicated.

The support proper comprises a pair of xioom legs 30 whose upper ends are turned inward and'connected with sockets 3l inthe cups of the last-namedjoint, and whose lower j ends carry a ring 32 having set screws 33: for supporting a shade aroundthe electric light bulb i Connected with said legs are two arms 34 whose lower ends convergezand carry a cla-mp 35 adapted to receive andhold Y y and t-he inner end of the latter is supported by a ball-and-socket joint on the hanger. @bviously the hanger may be attached to the ceiling or to `the wall, the bracket will usually project on a substantially horizontal line from the hanger, and the support will usually depend on a substantially vertical line from the bracket. But the hanger has a swivel connection between its two members so that the entire bracket can be swung from side toside. The two joints permit knuckling so that the bracket may be raised and lowered, and the members of the bracket it self are telescopically connected so that the bracket may be lengthened or shortened. Therefore it is possible to move the light and its shade in almost any direction and to a considerable distance within limits, so that the light may be brought to the desired point of use. Y

The current is supplied through a twowire cable as usual. This cable leads through the members and the nut of the hanger as indicated at 40', thence through a swivel coupling al as therein shown, thence down around the inner joint as at 42, and then extends through the bracket, and this stretch should be of the same length as the bracket when fully distended. Said stretch extends through the reduced outer end of the bracket and the hole in the ball of the secondk joint and down to the socket supporting the bulb.

rThere is employed a swivel coupling and thewiresfiO vlead down into two posts and`50 of this coupling. These posts are mounted at opposite sides of the open upper end of a shell or socket composed of two cups 51 having flanges 52 at their meeting edges connected by bolts 53, and wires 54 are led from said posts within the walls of the cups and connected with metal blocks 55 and 55 which extend into the interior of the socket. V'llherein is mounted a ball 56 of insulating material having around it upper and lower bands 57 and 57 disposed so ward out itslower end and are connected witlithe wires of the stretch 42 of cable. 'lhe ball may turn freely within'the socket,

and each band travelsin constant contact the lamp to the pointof use, theremay be occasions in which this arm is supported by a hanger from the ceilingv at the center of ak `V room, and the bracket and lamp would be revolved completely around the hanger, and the inter-position ot a swivel at the'point 41 would prevent twisting of the cable. flexibility oi' the latterwill permit all other movements required. rilension springsv 47 are provided within thereduced outer end oit the bracket to prevent the slipping of the wire therethrough when said bracket is distended.

Vhat is claimed is: j

A light support including a pair of swivel members, a tube secured to and extending end open, said onen end being formed with a pair'ot inwardly directed yresilient ngers, and a `tube secured'to the other swivel and extending" into ythe vopen end of the first tube tor slidable Vadjusti'nent therein', the said second tube beinglongritudinally slotted in The` trom one ot the swivels and having its outer opposite sides and formed with transverse corrugations with which the fingers engage, and spring' disposed transversely rof the second tube and through the said slots and beine; secured to said fingers. 1

It testimony whereof, LT.; a'tiiX my signature, i'

in the presence oiI two witnesses. j

THEODORE GEORGE BER-MAN. l

Witnesses:

MANDAME DEREMORE, C. 0. BArLnY, Jr. 

